Ore crusher



June 14. 1921 1,632,124

T. FREIBERG ORE CRUSHER Filed July 12. 1926 2 Sheets-Sheet l /7 g uz 42 /6 hiil a T. FREIBERG June 14, 1927.

ORE CRUSHER Filed July 12, 1926 2 Sheets-Sheet 2 i If tending crank shaft 17.

Patented June 1 4, 1927.

UNITED s TA FF-1S "THEODORE remand, or'jrmsco'mr; ARIZONA.

I ORE CKUSHER;

Application filed July 12, 1926. a Serial No. 121,863.

Mylinventionr relates to ore crushers' in general and particularly to a mill for grinding-or pulverizing quartz ore containing gold and one of the principal objects of my in vention resides. in a very simple, highly practical and efiicient mill which maybe easily operated and ata very low'cost of maintenance; The scope of my invention extends to whatever constructions may be defined. by or. included "within the terms or language of the appendedclaims,

In the drawing-Figure 1 is a :top plan view of my improved' ore-crusher.

. Figure 2is aside elevat'ion'thereof.

taken on the'line 3-i.3"of Figure 1 and looking in the direction of the arrowsflmd Figure 4is .a transverse sectional view.

taken on the line 1% of Figure 3. My inventionin the form-or embodiment shown in the drawing and briefly described comprises a trough 10 substantially U-shaped in cross sectionwhichmay be formed'of a pair'of sidelplates 1'121I1il'12 and a bottom 'Suitableangle irons14 are riveted'to" the lower ends of the sideplates 11, and 12 ber 10. Angle members 15 similar indesign to the angle irons Mare rivetedto the outer sides of the side plates 1.1 and 12 near the p p faoross'the lowerend of the trough 10 and upper. ends thereofas is clearly indicated in Figures 2 and 4. The bottom 13 is preferably inclined at an angle substantially as shown in Figure 3 and is braced by suitable T irons or the bottom may be set in concrete or cement foundation.

A pair of journal bearings 16 are bolted or otherwise secured to the upper edges of the angle bars 15 near the ends thereof for the purpose of receiving a horizontally ex- A fly-wheel 18 is keyed to one end of the shaft 17'to which a belt, not shown, may be applied for operating the mill. One end of the riding beam 19 ,is provided with a bearing portion 20 which is adapted to fit the crank portion 21 of the shaft 17 whereas the opposite end of the riding beam 19 is provided at its lower. surfacewith a shoe 22 which 18 rigidly secured to the riding beam 19 by means-0f bolts and nut-s23. A die24 is firmly held upon the upper surface of the inclined bottom 13 and so arranged as to be in contact. with the shoe'22 at all times regardless of the relative position between the shoe and the die; Thedie 2 1, which is preferably constructed of a. hardened steel, is provided on its upper surface with downwardly extending tapered or chamfe'red portion 25.

The beveled portion 25 preferably extends about. midway theentire length of the die 24.

A transversely extending brace member 26 ispreferably riveted across the inner side of the trough 10 and is secured to the plates 11 and 12 and the bottom 13;

An opening 27 isformed in th e approxiniate center ofthe bracemember 26 preferably near the upper endthereof for-a purpose. to be hereinafter described; Figure 3 is a longitudinal sectional View 1 A pairof channel members 28 are riveted to1the= inner sides 'of'the plates 11 and 12 and extend 'fiionr'the' bottom 13 to the upper edge of thetrough 10. A sci'een'29 of 'a is clearly indicated inFiguresl and 3 of. the

securelyjlield in pl ace'by means of a pair of bars 30.which are snugly'fittedbetweenfthe 'accompanying'drawing The screen 29"is channelimembers 28 and the adjacent faces;

of the ends of the screen 29. In .this'inanner the bars 30 may be "readilyfwithdrawn from the channel members 28 so that thesc'reen 29 may be easily; removed as for cleaning or replacement.. A metallic strip 31 is riveted.

and the adjacent side of the channel members 28 whereas the bar 33 is securely wedged between the upper end ofthe die 24 and the brace member 26. To prevent the die 21 from moving sidewise the wooden bars 84 are arranged to fit between the sides of the die 24 and the inside oi": the trough '10 between the plates 11 and 12. v I

A pair of bars 35 are pivoted at their lower ends to a transversely extending bar 136 which extends below the plate '13 and pair I of longitudinally extending wooden secured thereto. Trunnions 37 are formed; on the outerendsof the bar 36 for pivotally' 1 mounting the bars 35 and are provided with openings for receiving the usual cotter pins. A cross-bar 38 is provided with openings near the outer ends which are adapted to align with and freely slide upon the upper portions of the bars 35.

A brace member 39 is securely fastened to the cross-bar 88 intermediate the ends thereof and is extended downwardly for the purpose of being securely fastened to theriding beam 19 as indicated at elO. Guide blocks 41 are provided with suitable 0penings so that they may freely move with re spect to the bars and are adapted to rest upon the upper and rounded ends of the cross-bar 38 as clearly shown in Figure 2. Coil springs 42 are mounted between the upper ends of the guide blocks 41 and below suitable washers and nuts which are located near the extreme upper ends of the bars 35 for the purpose of varying the resilient pressure that is to be exerted between the shoe 22 and the die 24.

A hopper 4L3 is secured to the outer side of the plate 12 into which an opening a l is formed for the purpose of readily feeding ore into the inside of the trough 10. The" pulverized quartz and ore to flow downwardly into the lowermost portion of the trough 10. This pulp and the water will of course splash up against the screen 29, is

forced through and on to amalgamated copper platesin the usualmanner at which point the gold ore is deposited, lVith this novel arrangement of the die and shoe together with the operating mechanism therefore the ore is reduced to the pulp by a double movement of the shoe.

I claim:

1. An ore crusher comprising atrough having an inclined bottom, a die block mounted at the lower end of the inclined bottom, the upper surface of the die being beveled, a shoe, mounted to reciprocate upon the upper surfaces of said dieblock, means for feeding ore to be crushed upon the die block, a screen located across the lowermost end of said troughand means for causing the reciprocation of said shoe with respect to the die block.

2. An ore crusher comprising a trough having an inclined bottom, a stationary die block. mounted near the lower end of the inclined bottom, the upper surface thereof betapered, a shoe mounted to reciprocate alternately uponieach of theupper surfaces of the die block, means for varying the tension of said shoe upon the die block and means for causing the reciprocation of the shoe. r

3. An ore crusher comprising a trough having an inclined bottom, a stationary (lie block mounted near the lower end. of the inclined bottom, the upper surface thereof being tapered, a shoe mounted to reciprocate alternately upon each of the upper surfaces ofthe diebloek, means for varying the tension of said shoe upon the die block, a trough adapted to feed the ore upon the die block, and a brace extending transversely across the inside of said trough and having an opening therein for permitting water to flow upon said die block.

THEODORE FREIBERG. 

